2 * Copyright (C) 1995, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
6 Compilation and installation
8 The primary output of the source here is the lib/libyaz.a library,
9 which contains support functions for implementing the server or client
12 Two test-programs of interest are generated when you type 'make' at
13 the top level. server/ztest and client/client. Ztest is a dummy database
14 server which returns canned responses to all queries. It's good for
15 verifying that the protocol works ok, and ztest.c shows a minimalistic
16 implementation of the 'backend' interface.
18 Client is a linemode Z39.50 client. It supports a fair amount of the
19 functionality of Z39.50v2/SR, but some things you need to enable or disable
20 by recompilation. Its primary purpose is to excersise the package, and
21 verify that the protocol works OK. It can be started by typing
23 client tcp:<hostname>:<port>
25 at the UNIX prompt, to connect to a Z39.50 server, or
27 client osi:[<tsel>'/']<hostname>:<port>
29 to connect to an OSI SR target (this requires mOSI-support). To connect to
30 the DANBIB test target, you might use:
32 client osi:0103/find2.denet.dk:4500
34 Use '?' to get a list of the available commands.
36 The current query language is a bit awkward, but functional:
38 query ::= ['@attrset' <attribute-set>] rpn
39 rpn ::= complex | simple | attr rpn
40 complex ::= operator rpn rpn
41 operator ::= '@and' | '@or' | '@not'.
42 simple ::= term | set.
43 term ::= <word> | '"' <term> ... '"'.
44 set ::= '@set' <setname>.
45 attr ::= '@attr' [<attribute-set>] <number> '=' <number>.
53 @and @attr 1=1 andersen @attr 1=4 @attr 4=2 duckling
55 @attrset Bib-1 @and @attr GILS 2=2008 Washington @attr 1=21 weather
61 util - Various little utility functions. Logging, memory debugging,
62 primitive ISO 2709 presentation for the client, etc.
64 odr - Open Data Representation. This module implements the BER
65 encoding rules. Documentation is found in the files odr-use.man
68 asn - This module implements the Z39.50/SR protocol. The best way
69 to find out how it works is to look in the sample
70 client/server code in server/seshigh.c or yazlib/tst.c. The
71 interface is still wholly described by the file proto.h
72 which defines structure and type definitions for each of the
73 types introduced in the protocol specification.
75 comstack- This module implements the transport transparency
76 stack (COMSTACK). The comstack implements a generic interface
77 for exchanging BER-encoded records over a network. It supports
78 the 'American' mode of exchanging the records straight over
79 TCP/IP, and uses Peter Furniss' XTIMOSI package over RFC1006.
80 Look for documentation in the file comstack.man.
82 rfc1006 - Xtimosi requires an implementation of the OSI transport
83 layer with an XTI-based API. Some systems (HP and DEC,
84 notably) provide this. For others, we provide an
85 implementation of the RFC1006 protocol (which is what
86 ISODE-based implementations often use). This module is not
87 neeeded if you don't use xtimosi, and it's not included in the
90 server - This is the implementation of the server frontend. It
91 provides event-handling and server managament functions,
92 and calls the backend primitives (best documentation of these
93 is in the file include/backend.h). See server.txt.
95 client - A demonstration client. If we come upon a good design for a
96 higher level client API, that will live here.
98 include - The various header files.
100 makelib - This is a simple utility that gathers the libraries from the
101 previous modules into libyaz.a.
103 lib - The libraries. Primarily libyaz.a.
105 To get more information or assistance, send mail to yaz-help@index.ping.dk.
107 We maintain a mailing-list for the purpose of announcing new versions of
108 the software, bug-reports, discussion etc. You can sign up by sending
109 mail to yaz-request@index.ping.dk.